seth doane, thanks. and now for the rest of this morning's headlines, cbs news correspondent and "morning news" anchor betty nguyen is at the news desk. hey, betty. >> good morning, rebecca and russ. good morning to you at home. just moments ago, president obama arrived in brazil, trying to repair u.s. relations with one of the world's fastest-growing economic powers. relations between the two nations phrased when brazil refused to sign with the u.s. in efforts to contain iran's nuclear weapons program. mr. obama's three-day, five -- three-nation five-day visit, that is, includes stops in chile and el salvador. >>> a state of emergency has been declared in yemen after police stormed a camp filled with pro-democracy demonstrators this morning. on friday, thousands of people took to the streets in the capital demanding a new government. at least 42 people were killed when police opened fire on the protesters. >>> in the southern port city of aden police shot and wounded at least six anti-government protest